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Alaska Plant Hardiness Map
USDA Plant Hardiness Zone Map For Alaska.
Use this tool to help select
the best plant, tree, or shrub for your local climate.
Check the color of the section in your area of the map with the color key below.
Zones 1 through 7b represented here.
USDA Hardiness Zones and Average Annual Minimum Temperature Range
|
1 |
Below -50 F |
Below -45.6 C |
Fairbanks, Alaska; Resolute, Northwest Territories (Canada) |
|
2a
|
-50 to -45 F |
-42.8 to -45.5 C |
Prudhoe Bay, Alaska; Flin Flon, Manitoba (Canada) |
|
2b |
-45 to -40 F |
-40.0 to -42.7 C |
Unalakleet, Alaska; Pinecreek, Minnesota |
|
3a |
-40 to -35 F |
-37.3 to -39.9 C |
International Falls, Minnesota; St. Michael, Alaska |
|
3b
|
-35 to -30 F |
-34.5 to -37.2 C |
Tomahawk, Wisconsin; Sidney, Montana |
|
4a |
-30 to -25 F |
-31.7 to -34.4 C |
Minneapolis/St.Paul, Minnesota; Lewistown, Montana |
|
4b |
-25 to -20 F |
-28.9 to -31.6 C
|
Northwood, Iowa; Nebraska |
|
5a |
-20 to -15 F |
-26.2 to -28.8 C |
Des Moines, Iowa; Illinois |
|
5b
|
-15 to -10 F |
-23.4 to -26.1 C |
Columbia, Missouri; Mansfield, Pennsylvania |
|
6a
|
-10 to -5 F |
-20.6 to -23.3 C |
St. Louis, Missouri; Lebanon, Pennsylvania |
|
6b
|
-5 to 0 F |
-17.8 to -20.5 C |
McMinnville, Tennessee; Branson, Missouri |
|
7a |
0 to 5 F |
-15.0 to -17.7 C |
Oklahoma City, Oklahoma; South Boston, Virginia |
|
7b |
5 to 10 F |
-12.3 to -14.9 C |
Little Rock, Arkansas; Griffin, Georgia |
|
8a |
10 to 15 F |
-9.5 to -12.2 C |
Tifton, Georgia; Dallas, Texas |
|
8b |
15 to 20 F |
-6.7 to -9.4 C |
Austin, Texas; Gainesville, Florida |
|
9a |
20 to 25 F |
-3.9 to -6.6 C |
Houston, Texas; St. Augustine, Florida |
|
9b |
25 to 30 F |
-1.2 to -3.8 C |
Brownsville, Texas; Fort Pierce, Florida |
|
10a |
30 to 35 F |
1.6 to -1.1 C |
Naples, Florida; Victorville, California |
|
10b |
35 to 40 F |
4.4 to 1.7 C |
Miami, Florida; Coral Gables, Florida |
|
11 |
above 40 F |
above 4.5 C |
Honolulu, Hawaii; Mazatlan, Mexico |
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